Birgañj climate

Name: Birgañj
Address: NP

Birgañj is warmest in April, with average highs of 36 °C, and coldest in January, when nights average 9.8 °C. July is the wettest month (453 mm) and November the driest (4.8 mm). Figures are 1991–2020 climate normals.

Across a full year Birgañj averages 1,478 mm of rain and 294 days above 25 °C.

Nepal · population 268,273 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month April 36 °C
Coldest month January 9.8 °C
Driest month November 5 mm
Wettest month July 453 mm
Least cloud November 15 % cloud
Hottest on record May 44 °C
Coldest on record December 4.6 °C

What to expectBirgañj through the year

Birgañj has a clear annual cycle: average daily highs run from 22 °C in January to 36 °C in April, a swing of 15 °C in mean temperature across the year.

Counted across a normal year, 294 days a year reach 25 °C, 191 of them reach 30 °C. The warmest reading in the 1991–2020 record is 44 °C, in May.

Rain is strongly seasonal. July averages 453 mm against 5 mm in November — 95 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	21.6 °C	12 mm	26 %
February	25.3 °C	16 mm	24 %
March	31.2 °C	14 mm	23 %
April	35.6 °C	27 mm	26 %
May	35.5 °C	77 mm	31 %
June	33.8 °C	238 mm	60 %
July	31.1 °C	453 mm	89 %
August	31.1 °C	355 mm	87 %
September	30.6 °C	230 mm	64 %
October	29.8 °C	45 mm	24 %
November	27.4 °C	5 mm	15 %
December	23.5 °C	7 mm	19 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	21.6 °C	9.8 °C	15.4 °C	27.7 °C	5.3 °C	1	0
February	25.3 °C	12.4 °C	18.7 °C	36.0 °C	6.5 °C	15	1
March	31.2 °C	16.7 °C	24.0 °C	39.4 °C	9.1 °C	30	21
April	35.6 °C	21.7 °C	28.7 °C	42.5 °C	14.6 °C	30	28
May	35.5 °C	24.6 °C	29.9 °C	44.0 °C	18.8 °C	31	29
June	33.8 °C	25.9 °C	29.6 °C	44.0 °C	21.9 °C	30	27
July	31.1 °C	25.6 °C	28.0 °C	35.8 °C	23.4 °C	31	24
August	31.1 °C	25.5 °C	27.9 °C	35.8 °C	23.0 °C	31	24
September	30.6 °C	24.4 °C	27.1 °C	35.1 °C	19.7 °C	30	20
October	29.8 °C	20.6 °C	24.9 °C	33.9 °C	14.4 °C	31	15
November	27.4 °C	15.4 °C	21.1 °C	32.0 °C	10.6 °C	27	1
December	23.5 °C	11.3 °C	17.1 °C	28.0 °C	4.6 °C	7	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	12 mm	2	11 h/day	26 %	74 %	9.9 km/h
February	16 mm	2	11 h/day	24 %	66 %	12 km/h
March	14 mm	2	12 h/day	23 %	50 %	15 km/h
April	27 mm	5	13 h/day	26 %	44 %	16 km/h
May	77 mm	12	13 h/day	31 %	58 %	15 km/h
June	238 mm	21	14 h/day	60 %	74 %	15 km/h
July	453 mm	29	14 h/day	89 %	85 %	15 km/h
August	355 mm	28	13 h/day	87 %	86 %	14 km/h
September	230 mm	22	12 h/day	64 %	86 %	12 km/h
October	45 mm	5	12 h/day	24 %	78 %	8.6 km/h
November	5 mm	0	11 h/day	15 %	69 %	8.5 km/h
December	7 mm	1	10 h/day	19 %	72 %	8.5 km/h

How Birgañj compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Birgañj	36 °C	9.8 °C	1,478 mm	294
Hetauda · Nepal	32 °C	8.8 °C	2,016 mm	254
Bharatpur · Nepal	33 °C	9.6 °C	2,247 mm	271
Kathmandu · Nepal	26 °C	6.6 °C	2,813 mm	120
Kushinagar · India	37 °C	9.6 °C	1,279 mm	294
Janakpur · Nepal	35 °C	10 °C	1,372 mm	295
Muzaffarpur · India	37 °C	10 °C	1,243 mm	301

Planning a trip? See the best time to visit Birgañj.

QuestionsCommon questions about Birgañj’s climate

When is the best time to visit Birgañj?

That depends on what you want, so the honest answer is a comparison rather than a single month. February, November, December sit closest to 20 °C on average, April is the warmest month and November the driest. The month-by-month table above has the full picture.

How hot does Birgañj get?

In April, the warmest month, daily highs average 36 °C. About 191 days a year pass 30 °C. The highest value in the 1991–2020 record is 44 °C.

How cold does it get in winter?

Nights average 9.8 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Birgañj?

July, averaging 453 mm over 29 days with rain. The driest month is November with 5 mm. The year as a whole averages 1,478 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Birgañj rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Data point: 27.017°, 84.880° (the coordinates the reanalysis values are taken for)
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.